How To Work Out The Pitch Of A New Roof

A barge rafter at the side of the gable step 2 position a level against the underside of the rafter.

How to work out the pitch of a new roof.

Let s say it is equal to 1 5 m. Measuring from the underside of the roof is usually the most accurate way to find the slope since there is no roofing material to make an uneven surface. Rafter height width from pythagoras remember that at school so. Step 1 access a rafter.

Measure the rise of your roof. As aforementioned there is no standard pitch of a roof. If you prefer to work the angle out the traditional way without our handy calculator you can use the following equations to find the length of the rafter and the slope. If you are trying hard to work out how to figure roof pitch measurements the calculator takes away all of those problems for you more or less instantly.

Calculate the roof pitch as the proportion of rise and run. If you are trying to learn how to measure roof pitch calculations accurately you should really consider the importance of using a calculator. Roof pitch is used to describe the slope or angle of the roof. The roof pitch is important in determining the appropriate installation method and how much roofing material will be needed.

Calculate the rafter length substituting these values into the following formula. Pitch rise run 1 5 6 25. Express roof pitch as the ratio of the amount of the vertical rise of a roof or rise over the corresponding horizontal distance or run you write the pitch assuming a run of 12 inches thus the ratio would describe how much a roof rises for each foot of the run. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot.

The overhang of a rafter at the end of the roof. Place one end of a carpenter s level against the underside of the.